Sound Meter : SPL - dB meter

(Premium Unlocked)

★ 4.6

Version: 2.6.11

By: KTW APPS

Size: 4.00 MB

Release Date: 14 Feb 2026

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Brand Name : KTW APPS

Developer : KTW Apps

App Size : 4.00 MB

Email Id : ktwapps@gmail.com

Version : 2.6.11

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Sound Meter—also known as a Sound Pressure Level meter (SPL meter), noise level meter, or decibel meter (dB meter)—is a practical tool for measuring environmental noise. This app allows you to perform quick and convenient sound tests using your smartphone or tablet. The app uses your device’s built-in microphone to detect and measure surrounding noise levels in decibels (dB). While readings may differ slightly from a professional Sound Pressure Level (SPL) meter, Sound Meter provides a reliable estimate for everyday use.

Sound Meter—also known as a Sound Pressure Level meter (SPL meter), noise level meter, or decibel meter (dB meter)—is a practical tool for measuring environmental noise. This app allows you to perform quick and convenient sound tests using your smartphone or tablet.

The app uses your device’s built-in microphone to detect and measure surrounding noise levels in decibels (dB). While readings may differ slightly from a professional Sound Pressure Level (SPL) meter, Sound Meter provides a reliable estimate for everyday use.

⚠️ Important Note

The decibel values displayed by the app may not be as precise as those from a professional SPL meter. Most smartphone microphones are optimized for capturing human voice, which can affect measurement accuracy.

For improved accuracy:

Calibrate the app using a professional SPL meter if available.
If you don’t have one, go to a very quiet location and manually adjust the baseline reading to approximately 20–30 dB.

Key Features

Measure environmental noise levels
Real-time chart graph updates
Displays Minimum (Min), Maximum (Max), and Average (Avg) dB values during recording
Shows total measuring time
Reset button to restart measurements
Play and Pause controls
Easy noise test and sound test functionality

Common Noise Level Examples

140 dB – Gunshots
130 dB – Ambulance siren
120 dB – Thunder
110 dB – Concerts
100 dB – Subway train
90 dB – Motorcycle
80 dB – Alarm clock
70 dB – Vacuum cleaner, traffic
60 dB – Normal conversation
50 dB – Quiet room
40 dB – Quiet park
30 dB – Whisper
20 dB – Rustling leaves
10 dB – Breathing

Excessive noise exposure can negatively impact both physical and mental health. Monitoring your surroundings can help you reduce risk and protect yourself and your family.

Download Sound Meter today and stay aware of your environment’s noise levels.

1. What is Sound Meter?

Sound Meter is an app that measures environmental noise using your smartphone or tablet microphone. It functions as a decibel meter (dB meter), noise level meter, or Sound Pressure Level (SPL) meter for everyday sound testing.

2. How does the app measure noise?

The app uses your device’s microphone to detect sound levels and display them in decibels (dB). It provides real-time updates and visual charts of environmental noise.

3. Are the measurements accurate?

Readings may differ slightly from a professional SPL meter because most device microphones are optimized for human voice. For better accuracy, you can calibrate the app in a quiet environment (around 20–30 dB) or use a professional sound meter for reference.

4. What features does the app include?

Measure environmental noise in real time
Display minimum (Min), maximum (Max), and average (Avg) dB values
Graph chart showing sound levels
Track measuring time
Play, Pause, and Reset controls
Easy-to-use sound and noise tests

5. What are some examples of common noise levels?

140 dB – Gunshots
120 dB – Thunder
100 dB – Subway train
70 dB – Vacuum cleaner or traffic
60 dB – Normal conversation
30 dB – Whisper
20 dB – Rustling leaves

6. Can I use this app for professional sound measurement?

While useful for general monitoring and noise awareness, the app is not a replacement for professional Sound Pressure Level (SPL) meters. It is best for casual use and personal safety.

7. Why should I monitor environmental noise?

Exposure to loud noise can harm your physical and mental health. Using the app helps you identify potentially harmful noise levels and take precautions.

8. Is the app free?

Yes, the app is available for download and use on most Android devices.

9. How can I improve measurement accuracy?

Calibrate in a quiet environment
Use a professional SPL meter if available
Avoid measuring sounds near device speakers or noisy interference

10. Can this app protect my hearing?

While it doesn’t prevent noise damage, it helps you monitor and avoid prolonged exposure to harmful sound levels, promoting safer environments for you and your family.